Antenna



FIG. 1 is a perspective view of the top, front and left side of an antenna showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken line showing of a connector in FIGS. 2, 3, 5, 6, and 7 is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for an antenna, as shown. 